题解 | #输入n个整数，输出其中最小的k个#

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        while (in.hasNextInt()) {
            int n = in.nextInt();
            int k = in.nextInt();
            Queue<Integer> pq = new PriorityQueue<>(Comparator.reverseOrder());
            while (n-- > 0) {
                if (pq.size() == k) {
                    pq.offer(in.nextInt());
                    pq.poll();
                } else {
                    pq.offer(in.nextInt());
                }
            }
            pq.stream().sorted().forEach(x -> System.out.printf(x + " "));
        }
    }
}